Invention Grant
- Patent Title: Multifocal ophthalmic lens and related methods
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Application No.: US17228752Application Date: 2021-04-13
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Publication No.: US11754858B2Publication Date: 2023-09-12
- Inventor: Martin Webber
- Applicant: CooperVision International Limited
- Applicant Address: GB Fareham
- Assignee: COOPERVISION INTERNATIONAL LIMITED
- Current Assignee: COOPERVISION INTERNATIONAL LIMITED
- Current Assignee Address: GB Fareham
- Agency: Kilyk & Bowersox, P.L.L.C.
- Main IPC: G02C7/02
- IPC: G02C7/02 ; G02C7/04

Abstract:
A multifocal ophthalmic lens has a surface that varies across at least a portion of the lens to form a surface power map. The surface power map comprises a spiral, with a power that varies substantially periodically both radially outwards from and angularly about an optical axis of the lens. A period of the radial variation is greater than 100 microns and a period of the angular variation is greater than 6 degrees. Methods of making and using the multifocal ophthalmic lens are also described.
Public/Granted literature
- US20210341755A1 Multifocal Ophthalmic Lens and Related Methods Public/Granted day:2021-11-04
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